diff --git a/src/Query/FunctionScoreQuery.php b/src/Query/FunctionScoreQuery.php
index 9f5c31ced198138f41ce481f105ee660ebfc9533..391121f15b583350fe60fc0a3f487a4fe051af31 100644
--- a/src/Query/FunctionScoreQuery.php
+++ b/src/Query/FunctionScoreQuery.php
@@ -189,11 +189,13 @@ class FunctionScoreQuery implements BuilderInterface
         BuilderInterface $filter = null
     ) {
         $function = [
-            'script_score' => [
-                'script' => $script,
-                'params' => $params,
+            'script_score' => array_merge(
+                [
+                    'script' => $script,
+                    'params' => $params,
+                ],
                 $options
-            ],
+            ),
         ];
 
         $this->applyFilter($function, $filter);